A composite filtering device for pyrometallurgical smelting of high-grade nickel matte

Abstract

The utility model provides a composite filtering device for pyrometallurgical high-grade nickel matte, comprising a filter box, wherein at least two layers of mutually perpendicular filter wires are arranged in the filter box, a cleaning plate is slidably connected in the filter box, the filter wires vertically pass through the cleaning plate, one end of the cleaning plate is provided with a trapezoidal protrusion, a trapezoidal groove is provided on the inner wall of the filter box, and the trapezoidal protrusion is slidably connected to the trapezoidal groove. The utility model provides a composite filtering device for pyrometallurgical high-grade nickel matte, which directly scrapes off particles and mineral oil adhered to the filter wires and accumulates them on the surface of the cleaning plate through the movement of the cleaning plate, and the particles mixed with the mineral oil flow into the collecting tank and then into the trapezoidal groove and the cleaning tank, and finally the cleaning tank is cleaned through the air pipe, which has a good cleaning effect on the filter wires and can realize automatic cleaning, which is convenient and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of nickel pyrometallurgy, in particular to a composite filtering device for pyrometallurgy of high-grade nickel matte. Background Art

[0002] At present, about 90% of the world's nickel production capacity adopts pyrometallurgical methods. The more common pyrometallurgical nickel smelting processes in the industry mainly include side-blowing smelting / Ausmelt smelting + converter blowing, which requires adding various auxiliary materials to the high-temperature lead pot. A large amount of smoke will be generated in this process. The flue gas has a high temperature, a large amount of smoke and a complex composition. The flue gas contains not only heavy metal smoke, but also aerosols, mineral oils and other components. In particular, some tiny particles of smoke are difficult to remove.

[0003] For example, the publication number: CN219502249U, "A flue gas filter device for a regenerated lead pyrometallurgical refining device", includes: a flue gas filter box; a support plate, which is slidably arranged inside the flue gas filter box; a scraper, one end of which is installed on the outer wall of the support plate, which can scrape off the dust particles adhering to the lower end surface of the flue gas filter box; a shock component, which shocks the bottom of the flue gas filter box, and the shock can loosen the adhering dust particles. This patent uses a scraper to scrape off the dust particles on the surface of the filter box, but the scraping process cannot clean the dust in the vent hole, and can only use a cleaning plate to shock the dust in the hole. However, the shock not only has a great impact on the filter box, affecting its service life, but also generates a lot of noise during the shock, which is against green environmental protection.

[0004] This case was created to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The purpose of the utility model is to provide a composite filtering device for pyrometallurgical smelting of high-grade nickel matte to solve the problems raised in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a composite filtering device for pyrometallurgical smelting of high-grade nickel matte, comprising a filter box, wherein the filter box is provided with at least two layers of mutually perpendicular filter wires, a cleaning plate is slidably connected to the filter box, the filter wire passes vertically through the cleaning plate, a trapezoidal protrusion is provided at one end of the cleaning plate, a trapezoidal groove is provided on the inner wall of the filter box, and the trapezoidal protrusion is slidably connected to the trapezoidal groove.

[0009] Preferably, a collecting groove is provided at the lower end of the cleaning plate facing the inside of the filter box, the collecting groove is inclined, one end close to the trapezoidal protrusion is lower than the other end, and an embedding cavity is opened on the inner wall of the filter box facing the cleaning plate.

[0010] Preferably, one end of the collecting groove close to the trapezoidal protrusion is connected to the trapezoidal groove.

[0011] Preferably, a cleaning groove is provided at the lower end of the trapezoidal groove, and the cleaning groove is connected to the trapezoidal groove, so that the impurities collected in the collecting groove flow into the cleaning groove through the trapezoidal groove.

[0012] Preferably, both ends of the cleaning groove are provided with through holes, and the through holes penetrate the filter box to connect to an external air pipe.

[0013] Preferably, the cleaning plate is driven by a cylinder, the cylinder is arranged inside the filter box wall, and the output end of the cylinder is vertically connected to the trapezoidal protrusion.

[0014] (III) Beneficial effects

[0015] After adopting the above technical scheme, the utility model has the following advantages compared with the prior art: the utility model is a composite filtering device for pyrometallurgical smelting of high-grade nickel matte, which directly scrapes off the particles and mineral oil adhered to the filter wire through the movement of the cleaning plate and accumulates them on the surface of the cleaning plate, and the particles mixed with the mineral oil flow into the collecting tank and then into the trapezoidal tank and the cleaning tank, and finally the cleaning tank is cleaned through the air pipe, which has a good cleaning effect on the filter wire and can realize automatic cleaning, which is convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the internal structure of the utility model;

[0017] Figure 2 A schematic diagram from another perspective;

[0018] Figure 3 This is a schematic diagram of the external perspective;

[0019] Figure 4 for Figure 1 Front view;

[0020] In the figure: 1 filter box, 2 filter wire, 3 cleaning plate, 31 trapezoidal protrusion, 32 collecting groove, 4 trapezoidal groove, 5 cleaning groove, 6 perforation, 7 embedding cavity. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below through the drawings and embodiments.

[0022] The utility model provides a composite filtering device for pyrometallurgical smelting of high-grade nickel matte. Figure 1-4As shown, it includes a filter box 1, which is provided with at least two layers of mutually perpendicular filter wires 2. A cleaning plate 3 is slidably connected to the filter box 1. The filter wire 2 vertically passes through the cleaning plate 3. One end of the cleaning plate 3 is provided with a trapezoidal protrusion 31. The inner wall of the filter box 1 is provided with a trapezoidal groove 4. The trapezoidal protrusion 31 is slidably connected to the trapezoidal groove 4. Through the movement of the cleaning plate 3, the particles and mineral oil adhered to the filter wire 2 are directly scraped off and accumulated on the surface of the cleaning plate 3, and then the particles mixed with the mineral oil flow into the collecting tank 32 and then into the trapezoidal groove 4 and the cleaning tank 5. Finally, the cleaning tank 5 is cleaned through the air pipe, which has a good cleaning effect on the filter wire 2, can realize automatic cleaning, and is convenient and efficient. Multiple layers of mutually perpendicular filter wires 2 can be set as needed.

[0023] Reference Figure 1-4 A collecting groove 32 is provided at the lower end of the cleaning plate 3 on one side facing the inside of the filter box 1. The collecting groove 32 is slightly inclined, and one end close to the trapezoidal protrusion 31 is lower than the other end, so that the particle mixed mineral oil can flow into the trapezoidal groove 4. An embedding cavity 7 is provided on the inner wall of the filter box 1 on the side facing the cleaning plate 3. When the cleaning plate 3 moves to the other end of the filter wire 2, the cleaning plate 3 enters the embedding cavity 7, thereby completing the cleaning work of the entire filter wire 2.

[0024] Reference Figure 4 The end of the collecting groove 32 close to the trapezoidal protrusion 31 is connected to the trapezoidal groove 4, and a cleaning groove 5 is provided at the lower end of the trapezoidal groove 4. The cleaning groove 5 is connected to the trapezoidal groove 4. The impurities collected in the collecting groove 32 flow into the cleaning groove 5 through the trapezoidal groove 4. The cleaning groove 5 has perforations 6 at both ends. The perforations 6 penetrate the filter box 1 and are connected to the external air pipe. It should be noted that the air pipe is not drawn in the accompanying drawings. The cleaning of the cleaning groove 5 and the discharge of the particle mixed mineral oil are completed by the impact of the air in the air pipe. When the cleaning plate 3 is moving, the trapezoidal protrusion 31 will also scrape the trapezoidal groove 4, and the scraped particle mixed mineral oil will also flow into the trapezoidal groove 4.

[0025] Reference Figure 2 The cleaning plate 3 is driven by a cylinder, which is arranged inside the filter box 1 wall, and the output end of the cylinder is vertically connected to the trapezoidal protrusion 31. Only the output end of the cylinder is drawn in the accompanying drawings.

[0026] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite filtering device for pyrometallurgical smelting of high-grade nickel matte, characterized in that: The invention comprises a filter box (1), wherein at least two layers of mutually perpendicular filter wires (2) are arranged in the filter box (1), a cleaning plate (3) is slidably connected in the filter box (1), the filter wire (2) vertically passes through the cleaning plate (3), one end of the cleaning plate (3) is provided with a trapezoidal protrusion (31), the inner wall of the filter box (1) is provided with a trapezoidal groove (4), and the trapezoidal protrusion (31) is slidably connected to the trapezoidal groove (4).

2. A composite filtering device for pyrometallurgical high-grade nickel matte according to claim 1, characterized in that: A collecting groove (32) is provided at the lower end of one side of the cleaning plate (3) facing the inside of the filter box (1); the collecting groove (32) is inclined, with one end close to the trapezoidal protrusion (31) being lower than the other end; and an embedding cavity (7) is provided on the inner wall of the filter box (1) facing the cleaning plate.

3. A composite filtering device for pyrometallurgical high-grade nickel matte according to claim 2, characterized in that: One end of the collecting groove (32) close to the trapezoidal protrusion (31) is connected to the trapezoidal groove (4).

4. A composite filtering device for pyrometallurgical high-grade nickel matte according to claim 3, characterized in that: A cleaning groove (5) is provided at the lower end of the trapezoidal groove (4), and the cleaning groove (5) is connected to the trapezoidal groove (4). Impurities collected in the collecting groove (32) flow into the cleaning groove (5) through the trapezoidal groove (4).

5. A composite filtering device for pyrometallurgical high-grade nickel matte according to claim 4, characterized in that: Both ends of the cleaning groove (5) are provided with through holes (6), and the through holes (6) penetrate the filter box (1) and are connected to an external air pipe.

6. A composite filtering device for pyrometallurgical high-grade nickel matte according to claim 1, characterized in that: The cleaning plate (3) is driven by a cylinder, the cylinder is arranged inside the wall of the filter box (1), and the output end of the cylinder is vertically connected to the trapezoidal protrusion (31).

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